We have entire application source code in C written on AIX 5.3 with Oracle 10g. We wish to upgrade to new AIX servers using 6.1 and Oracle 11gR2. We think we should upgrade to 64-bit mode since Oracle is unikely to support 32-bit much longer.
What we want to do initially is to estimate the time and effort to convert; hence we would appreciate guidance from others who have been on the 32-bit to 64-bit path before us